<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
		
		<script>
			let id="userid"
			let zl={name:"朱亮",[id]:3421};
			
			let a="name";
			let b="age";
			console.log(zl[a]);
			zl[b]=18;
			console.log(zl.age);
			console.log(zl.userid)
		</script>
	</body>
</html>
